A convention, founded in 1978, often called Darkover and later called Darkovercon and starting in 2014, Chessiecon, which is held in the Mid-Atlantic states and is devoted to fantasy. In its early days, it was centered around Marion Zimmer Bradley's Darkover series.

Judy Gerjuoy founded Darkover and ran it (and funded its deficits) until she died. The final Darkover was a blowout celebration and it then became Chessiecon.